Bill Kelliher

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Bill Kelliher
Kelliher performing in 2022
Background information
Birth name	William Breen Kelliher
Born	(1971-03-23) March 23, 1971 (age 53) Rochester, New York, U.S.
Genres	Progressive metal sludge metal stoner metal
Occupation	Guitarist
Years active	1995–present
Member of	Mastodon
Website	mastodonrocks.com

William Breen Kelliher (born March 23, 1971) is an American musician, best known as the rhythm guitarist of heavy metal band Mastodon, and being the only band member who doesn't share the lead vocal duty (excluding some live performances).